Location; Air Handler; Condensing Section; Installation - Bosch LM024 Installation, Operation And Maintenance Manual

LM Series Heat Pump

LOCATION

To maximize system performance, efficiency and
reliability, and to minimize installation costs, it is
always best to keep the refrigerant lines as short
as possible. Every effort should be made to locate
the air handler and the condensing section as
close as possible to each other.
AH
Figure # 2

Air Handler

Locate the air handler unit in an indoor area that
allows easy removal of the filter and access panels,
and has enough room for service personnel to
perform maintenance or repair. Provide sufficient
room to make electrical and duct connections. If
the unit is located in a confined space such as a
closet, provisions must be made for return air to
freely enter the space. On horizontal units, allow
adequate room below the unit for a condensate
drain trap.
The air handler units
outdoor installation; therefore, they must be
installed inside the structure being
conditioned. Do not locate in areas that are
subject to freezing.

Condensing Section

Locate the condensing section in an area that
provides sufficient room to make water and
electrical connections, and allows easy removal of
the access panels, for service personnel to
perform maintenance or repair.
Reference the Condensing Section section of
this manual for detailed installation and
operation.
Revised 01-14
CS
are not approved for

INSTALLATION

Remove all shipping blocks from the inside
and/or putside of the air handler section
prior to final installation.
NOTE: The installer should comply with all
local codes and regulations which govern
the installation of this type of equipment.
Local codes and regulations take precedent
over any recommendations contained in
these instructions. In lieu of local codes, the
equipment should be installed in
accordance with the recommendations
made by the National electric code, and in
accordance with the recommendations
made by the National Board of Fire
Underwriters.
Air Handler
The air handler section may be installed on any
level surface strong enough to support its weight.
When installed in a closet or on a base stand, it
should be mounted on a vibration absorbing pad
slightly larger than the base to minimize vibration
transmission to the building structure.
When installed in an attic or above a drop ceiling,
the installation must conform to all local codes.
When installed in the horizontal position (supply
air at the end or side of the unit), the unit should
be supported on all four corners with threaded
rods attached to the building ceiling rafters and
utilizing the hanger kits (Figure #3). Refer to the
hanging bracket assembly and installation
instructions for details.
Figure # 3
Some applications require an attic floor
installation of the air handling unit. In this case the
unit should be set in a full size secondary drain pan
on top of a vibration absorbing mesh. The
secondary drain pan prevents possible condensate
overflow or water leakage damage to the ceiling.
LOCATION | 5
8 733 920 847 (2014/01)